Play motion tween until other button gets clicked

Question

I want to make an animation where a person dances: there are 4 buttons and when one button gets clicked, the person starts and loops a specific motion tween. I already have everything, until now only a picture is shown on click:
function clickSpecialMove(event:Event):void {
! trace("SpecialMove");
! gotoAndStop("SpecialMove");
BeHappy.addEventListener(MouseEvent.CLICK, clickBeHappy);
function clickBeHappy(event:Event):void {
trace("BeHappy");
gotoAndStop("BeHappy");
Twinkle.addEventListener(MouseEvent.CLICK, clickTwinkle);
function clickTwinkle(event:Event):void {
! trace("Twinkle");
! gotoAndStop("Twinkle");
HandsUp.addEventListener(MouseEvent.CLICK, clickHandsUp);
function clickHandsUp(event:Event):void {
! trace("HandsUp");
! gotoAndStop("HandsUp");
but I wan't a motion tween to play:
gotoAndPlay("motionTwinkle"); does not work, then all motion tweens just walkr through like in a film :...can anybody help me? that would be so nice thank you!

Answer 1

How do you implement the animations?  What makes the animation loop?  For all of the code you show you only have gotoAndStop() commands.  What do those have to do with the gotoAndPlay() you mention?  Why do you have exclamation marks leading several lines - remove those if they are actually in your code?